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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Showing 1-5 of 18 Abstracts search results
Document:
SP214-12
Date:
June 17, 2003
Author(s):
D. A. Schmidt
Publication:
Symposium Papers
Volume:
214
Abstract:
Acrylic polymers are widely recognized for their excellent UV durability and water resistance properties. When acrylic polymers are used as modifiers in Portland cement formulations, those polymer properties translate into excellent long-term outdoor durability and wet adhesion durability in the modified concrete. A number of lab prepared series of acrylic polymer modified portland cement formulations have been placed in outdoor exposure and tested periodically for the durability of various properties. Some of these experimental series have been on exposure for as long as 30 years. The results of these studies indicate that acrylic polymers are the ideal cement modifiers with respect to outdoor durability and wet adhesion durability.
DOI:
10.14359/12767
SP214-06
G. W. DePuy
The historical development of polymer-impregnated concrete (PIC) is reviewed. Starting in 1965, PIC was developed over a period o f several years as part of a joint research program conducted by the Bureau of Reclamation (USBR) and Brookhaven National Laboratory (BNL) under sponsorship of the USBR, Atomic Energy Commission (ARC), and the Office o f Saline Water (OSW). At various times other organizations funded portions of the program aimed at developing applications directed at their particular interests. Following reports of the research results, research was also conducted by many other organizations in the US and worldwide. The paper reviews the various processes and equipment used to produce both partial and fully impregnated concrete. Included are discussions on drying the concrete, placing it under vacuum, pressure soaking, encapsulation, and polymerization techniques. Monomer and catalyst systems arc also discussed. Costs and safety procedures are also mentioned. Comparisons of improvements in properties of PIC over conventional concrete are given.
10.14359/12761
SP214-02
W. S. Wahby
Polymer concrete materials stand today as a very promising group of new building materials. This paper presents a brief overview of the use of polymers in concrete in various industrial applications over the past fifty years. Classification, production, and main advantages and disadvantages of polymer concrete materials are presented. Their physical, mechanical, and chemical properties are reviewed and compared to those of the conventional portland cement concrete. Hazards involved in handling, transporting, storing and mixing the chemicals used to produce polymer concrete materials are discussed, and safety consideration are presented.
10.14359/12757
SP214-01
J. T. Dikeou
The paper reviews the historical development of polymers in concrete, and the history of ACI Committee 548, and it’s sister organization, the International Congresses on Polymers in Concrete. Polymer concretes and polymer modified concretes have been studied and used since the1940’s and 1950’s; polymer impregnated concretes have been studied starting in the mid 1960s. Three categories of concrete that contain polymers are: (1) polymer concrete (PC), (2) polymer modified concrete (PMC), and (3) polymer-impregnated concrete (PIC). Committee 548 was started in 1971, and from the start has been one of the most active and productive committees in ACI. The committee has produced seven documents, most of which have required committee action to reaffirm or revise over the years. The committee has also organized and conducted nine technical sessions at ACI Conventions, which have produced Special Publications (SP), and has organized two National ACI Seminars.
10.14359/12756
SP214-16
G. J. Fallis
In recent years, sulphur concrete has proven to be capable of withstanding attack by some of the most aggressive chemicals used in industry. This fast setting, acid and salt resistant concrete is well suited for use in the mineral processing and fertilizer production industries. This paper briefly describes the properties, production, application and performance of this new construction material, with references to actual commercial installations and reviews the long term durability of these projects in harsh chemical environments.
10.14359/12771
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